EARTHQUAKER DEVICES: Hizumitas Fuzz Sustainar

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The Earthquaker Devices Hizumitas is basically the same as the Elk Sustainar, but with a 3n3 cap instead of a 330pf cap in the tone control (specifically the high pass filter).  There are some other minor differences, but the 3n3 is probably the biggest factor in terms of sound.   Even though the EQD Hizumitas … Read more

Electro-Harmonix Big Muff Pi Schematic and Component Table

EHX Big Muff Schematic 2082d0cd792f

I used Kit Rae schematics, but I did not follow the same component numbering, as I don’t find it all that intuitive.  Kit did it that way for a good reason, this way works better for my brain.  There’s also this excellent post by Kit Rae on the EHX forum, broadly describing differences between versions. … Read more

IBANEZ: Overdrive OD-850

IBANEZ Overdrive OD850 Vero Layout 39b228b37964

The Ibanez Overdrive OD-850 is an early Japanese Big Muff variation, almost a straight clone if it wasn’t for the usual tone stack.  It’s also known as the Maxon D&S OD-801 – either way, both classic guitar effects from Japan. The tone stack fixes the bass response to some degree, providing a more even sweep across the range.   … Read more